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UNIX in a Nutshell: System V Edition

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UNIX Commands
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wc [options] [files]

Print a character, word, and line count for files. If no files are given, read standard input. See other examples under ls and sort.



Print character count only.


Print line count only.


Print word count only.


Count the number of users logged in:

who | wc -l

Count the words in three essay files:

wc -w essay.[123]

Count lines in variable $file (don't display filename):

wc -l <$file

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